Setts



- (No Model.)

W. F. & G. A. DRAPEH.

SUPPORT FOR SPINNING SPINDLES.

o I 8 l I km "./r\% A k N V Patented May 15, 1888.

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,NITED STATES PATENT Fries.

\VILLIAM F. DRAPER AND GEORGE A. DRAPER, OF HOPEDALE, MASSACHU- SE'ITS,ASSIGNORS TO GEORGE DRAPER 8s SONS, OF SAME PLACE.

SUPPORT FOR SPINNiNG- SPINDLES.

SPECIFICATION torming part of Letters Patent No. 383,048, dated May 15,1888.

(No model.)

To all whom, it may concern.-

Be it known that we, WILLIAM F. DRAPER and GEORGE A. DRAPER, ofHopedale, county of Worcester, and State of Massachusetts, have inventedan Improvementin Supports forSpinning-Spindles, of which the followingdescription, in connection with the accompanying drawings, is aspecification, like letters on the.

drawings representing like parts.

In Letters Patent of the United States granted to us March 6, 1888, No.378,877, we have shown and described a spindle having a tapering pintlewhich fits a tapering bolster, the said bolster being connected in anadjustable manner with a step, the connection being such as to permitthe bolster to be moved vertically or longitudinally with relation tothe step in the surrounding bolster'support, both the bolster and stepbeing restrained from rotation, such adjustmentof the parts enabling anywear between the pintle of the spindle and theinterior of the bolster tobe compensated for, and enabling a proper running fit to be maintainedbetween the said parts.

It is essential for the best resultsin spinning that the bolster be soheld or suspendcd in or with relation to its surrounding support thatthe bolster may move or vibrate and follow the vibrations of the lowerend of the spindle, and the proper amount of looseness having beendetermined upon for the particular spindle, it is a desideratum to beable to keep the said looseness substantially the same, and it is also adesideratum to be enabled to ad just the bolster so as to vary theamount of looseness according to the requirements of the spindle. To dothis we have tapered the exterior of the bolster and the interior of thesurrounding support for it, and have adjustably attached to the saidbolster a step, the rotation of the step with relation to the bolsterenabling the bolster to be raised or low cred within its outsidesupport, thus varying the looseness according to the demands of thespindle. In the conical space between the bolster and its support wemay, if desired, use packing, or the bolster and support may come incontact in the presence of oil or air. For the more perfect results wehave shown the interior of the bolster as tapered, and have tapered thepintle or lower end of the spindle as in our said application; or, ifdesired, as is herein also shown, the pintle or lower end of the spindlemay be cylindrical, and the interior of the bolster for a portion of itslength may have a cylindrical bore, and, if desired, the lower end ofthe spindle may be run upon a step either separable from the bolster ormade as an integral part of it.

Figure 1 in vertical section shows aspindlebearing embodying ourinvention, the said figure showing also the spindle-rail and inelevation the spindle. Fig.2 is a top or plan view of a part of thebearing with thespindle removed; Fig. 3, a section looking down belowthe line x w, the rail being, however,omitted. Fig. 4 is yet anotherview showing our invention in its simplest form, but part of the spindlebeing shown. Fig. 5 is a modification of our invention.

The surrounding support A for the bolster is herein shown as adetachable block or standard erected upon the usual rail, 0; butinsteadof the particular support shown we may employ any other usual orsuitable support to surround the bolster and support it loosely inproper working position. The not B, the spindle D, having a sleevewhirl,D, and the hook or stop E, are and may be all as usual.

Referring first to the simpler form of our invention in Fig. 4, it willbe seen that the bolster c is bored eylindrically to receive the lowerend or pintle, a, of the spindle; but it will also be observed that theexterior of the bolster is tapered, and that the interior of the supportA is alsocorrespondingly tapered, so as to present substantiallyparallel surfaces. The lower end of the spindle, or the portion a, asrepresented in Fig. 4, rests upon the upper end of a step, 5, shown as ascrew rising from a Stepseat, a both of which, as shown, are groovedlongitudinally for the reception of a restraining pin 01' stud, as aReferring now to Fig. 1, it will be seen that the exterior of thebolster is tapered and that the interior of the surrounding support A isalso tapered, substantially as in Fig. 4; but, in addition, the interiorof the bolster is tapered to receive the lower end of the spindle, itbeing correspondingly tapered.

In Fig. 1 the lower end of the spindle rests upon a step, b, connectedin an adjustable manner with a step-rest, a

In Figs. 1 and 5 the bolster near its upper end hasaprojection, as 2,which enters one or the other of a series of slots, 3, made in thesurrounding support A, or it may bejust the reverse of this, the saidslot and projection constitutingmeans for preventing rotation of thebolster in the bolster-case with the spindle, such rotation of thebolster being very injurious, if not absolutely destroying the utilityof the hearing.

In Fig. 5 we have shown yet another modification, in which the lower endof the bolster has screwed or attached fixedly to it a screw orequivalent stud, which enters and ismade adjustable longitudinally inthe step-rest if, the lower end of the spindle fitting the solid bottomof the bolster.

, In Fig. 1 we have shown the externally-ta pered bolster as surroundedby an elastic packing,p, introduced between the bolster and support A;but in Fig. 4 we have omitted the packing, letting the exterior of thebolster come in contact with the interior of the sup port A, separatedonly by a film of oil or air, the differences in diameter between theexterior of the bolster and the opening at the interior of the supportbeing in practice found effective when as little as one one-hundredth ofan inch, that amount of looseness effectually doing away with thejar dueto gyration.

In Fig. 1 the bolster and step-rest are connected by a single piece,shown as having threaded portions of two diameters, one of the threadedportions being screwed into the steprest, while the other has screwedupon it the lower end of the bolster.

By rotating the bolster with relation to the step-rest, which rests uponoris supported by or through the bottom of the chamber left in thesupport A, the height or distance of the upper end of the bolster withrelation to the lower end of the step-rest may be varied in such manneras to vary the width of the space between the exterior of the bolsterand the interior of its surrounding support, thus controlling anddetermining the extent of looseness of the bolster within itssurrounding support.

To provide for yet further adjustments for substantially suchadjustments as provided for in our application, Serial No. 246,991, thebolster will be rotated more or less upon or with relation to the stepor the upper end of the connecting device I), interposed between thebolster and step-rest, until the contact between the tapering exteriorof the spindle and the tapering interior of the bolster is uniform, andthereafter, as the spindle and bolster become worn by use, the saidbolster may be again turned to move it longitudinally with relation toits step, thus compensating for any wear and maintaining the normal fitbetween the spindle and bolster. When making these adjustments, thebolster will be raised from its surrounding support sufficiently todisengage the projection 2 from the slot 3, the connection between thestep-rest and surrounding support beingsuch as to permit, if desired,the removal of the entire bolster and its attached parts.

The bolster will have suitable holes or passages for oil.

We claim- 1. A spindle-bearing containing the followinginstrumentalities, viz: a bolster tapered externally, a surroundinginternally-tapered support for the bolster, into which the bolster isfitted loosely, and a step and means to adjust the said bolstervertically with relation to the said support to thus increase ordecrease the extent of looseness between the said parts, and means torestrain the loose bolster from rotation in the said support,substantially as described.

2. A bolster support and bolster placed therein loosely,and a step-rest,combined with an intermediate connection, substantially as described,between the said bolster and steprest,whereby the bolster may beadjusted longitudinally within its support and with relation to the saidstep rest, as and for the purposes set forth.

3. A surrounding support havinga tapering interior, a bolster having atapering exterior and a tapering interior and placed in thebolster-support loosely, a spindle'supported in the said bolster,and astep rest, combined with a connecting device,substantially as described,whereby the bolster may be adjusted longitudinally with relation to thestep-rest, and with means to restrain the rotation of the bolster in itssurrounding support, for the purposes set forth.

4. A surrounding support having a tapering interior, a bolster having atapering exterior and a tapering interior and placed in thebolster-support loosely, a spindle supported in the said bolster, and astepresflcombined with aconnectingdevice,substantially as described,whereby the bolster may beadjusted longitudinally with relation to thestep-rest, and with means for restraining the rotation of both thebolster and the step-rest in or with relation to the surroundingsupport. 5. In a spindle-bearing, a bolster tapered externally, asurrounding support tapered internally, and an adjustable step tosustain the weight of the spindle, combined with pins or projections torestrain the rotation of not only the step,butalso the bolsterwithinthebolsten support, as and for the purposes set forth.

In testimony whereofwe have signed our names to this specification inthe presence of two subscribing witnesses.

WVM. F. DRAPER. GEO. A. DRAPER.

Witnesses:

H. F. SEARLES, FRANK DEWING.

